Insect toxicant reaction product of hydroxyaromatic and alkali orthosilicate compounds



nited States Patent C) F INSECT TOXICANT REACTION PRODUCT OFHYDROXYAROMATIC AND ALKALI OR- THOSILICATE COMPOUNDS Frank H. Lyons,Memphis, Tenn., assignor to E. L. Bruce Company, Memphis, Tenn., acorporation of Delaware No Drawing. Application March 23, 1954, SerialNo. 418,240 3 Claims. (Cl. 167-31) This invention relates to a newchemical composition which has particular utility as an insect toxicant.More particularly, the composition in accordance with this invention isan aqueous solution of a new toxicant compound.

The chemical composition in accordance with this invention isadvantageous due to the fact that it possesses a high degree oftoxicity. Being an aqueous solution it is economical and facile toapply. It may be'used, for example, for controlling and destroying wooddestroying insects, as, for example, subterranean termites, or the like.

As further illustrative of the utility of the composition of thisinvention, it is advantageous since the toxicant compound reacts withlime to form an insoluble toxicant compound. This is highly useful fortreating, for example, Portland cement slabs used in housingconstruction. The composition can be readily applied to the slab andthere is formed an insoluble toxicant which will not be leached away bywater.

More specifically, the composition in accordance with this invention isformed by the reaction in an aqueous medium of hydrated sodiumorthosilicate with a naphthol, such as, for example, betanaphthol,-phenol, a halogen substituted phenol, such aspentachlorophenol or tetrachlorophenol, cresol, a halogen substitutedcresol, anthrols, and hydroxy substituted phenols, the reaction beingcarried out in the ratio'of 1 mol of hydrated sodium orthosilicate tofrom 1 to 3 mols of one or more of the above listed reactants. 'In thefinal product the toxicant compound is about 2% to about 20% by weightof the water.

The actual structure of hydrated sodium orthosilicate and the actualstructure of the reaction-products of this invention are not known. Theformulas provided herein are, therefore, to be considered essentiallyempirical.

The compounds are readily prepared by mixing anhydrous sodiumorthosilicate with water, the reaction being shown below:

EXAMPLE 1 Aqueous solutionof sodium orthosilicate-beta naphthol reactionproduct formed from the ratio of '1 mol of hydrated sodium orthosilicateto 1 mol of beta naphthol 164 pounds of water were placed in a vesseland 21 pounds of sodium orthosilicate, 89% pure, were added and stirreduntil in solution. 15 pounds of beta naphthol were added and stirreduntil the reaction was complete.

Patented June 28, 1955 ICC EXAMPLE 2 Aqueous solution of sodiumorthosilicate-beta naphthol reaction product formed from the ratio of 2mols' of hydrated sodium orthosilicate to 3 mols of beta naphthol 171pounds of water were placed in a vessel and 14 pounds of sodiumorthosilicate, 89% pure, were added and stirred until in solution. 15pounds of beta napthol were added and stirred until the reaction wascomplete.

EXAMPLE 3 I pounds of sodium orthosilicate, 89% pure, were added andstirred until in solution. 15 pounds of beta naphthol were added andstirred until the reaction was complete.

EXAMPLE 4 Aqueous solution of sodium orthosilicate-pentachlorophenolreaction product formed from the ratio of 1 mol of hydrated sodiumorthosilicate to 1 mol of pentachlorophenol 164 pounds of water wereplaced in a vessel and 11%. pounds of sodium orthosilicate, 89% pure,were added and stirred until in solution. 15 pounds of pentachlorophenolwere added and stirred until the reaction was complete.

EXAMPLE 5 Aqueous solution of sodium orthosilicate-pentachlorophenolreaction product formed from the ratio of 1 mol of hydrated sodiumorthosilicate to 2 mols of pentachlorophenol 171 pounds of water wereplaced in a vessel and 7.7 pounds of sodium orthosilicate, 89% pure,were added and stirred until in solution. 15 pounds of pentachlorophenolwere added and stirred until the reaction was eomplete.

EXAMPLE 6 Aqueous solution of sodium orthosilicate-tetrachloro phenolreaction product formed from the ratio of 1 mol of hydrated sodiumorthosilicate to 2 mols of tetrachlorophenol 171 pounds of water wereplaced in a vessel and 7.7 pounds of sodium orthosilicate, 89% pure,were added and stirred until in solution. 15 pounds of tetrachlorophenolwere added and stirred until the reaction was complete.

EXAMPLE 7 Aqueous solution of sodium orthosilicate-betanaphtholpentachlorophenol reaction product formed from the ratio of 1mol of hydrated sodium orthosilicate to] mol of beta naphthol and 1 molof pentachlorophenol 328 pounds of water Were placed in a vessel and 32/2 pounds of sodium orthosilicate, 89% pure, were added and stirreduntil in solution. 15 pounds of beta naphthol and 15 pounds ofpentachlorophenol were added and stirred until the reaction wascomplete.

EXAMPLE 8 Sodium orthosilicate-pentachlorophenol reaction product formedfrom the ratio of 1 mol of hydrated sodium orthosilicate to 3 mols ofpentachlorophenol 178 pounds of water were placed in a vessel and 3.85pounds of sodium orthosilicate, 89% pure, were added and stirred untilin solution. 15 pounds of pentachloro- 4 phenol were added and stirreduntil the reaction was ous solution of the reaction product of hydratedsodium complete. orthosilicate with beta naphthol, the hydrated sodiumTo further illustrate the utility of these compounds orthosilicate andthe beta naphthol being reacted in when used in connection with a cementcontaining lime, the ratio of from 1 mol of hydrated sodiumorthosilicate the reaction of the betal naphthol-hydrated sodium ortho-5 to from 1 to 3 mols of beta naphthol. silicate reaction product withlime to form an insoluble 3. An insect toxicant composition comprisingan aquetoxicant is illustrated below: ous solution of the reactionproduct of hydrated sodium H aN N 2, 5 J, Home), H .H H H H H m 0 H H HH H H o 0 o O H -4Ja( Js1a+5IIIa M (l o H H H H H Insoluble toxicantWhat is claimed is: orthosilicate with pentachlorophenol, the hydratedso- 1. An insect toxicant composition comprising an aquediumorthosilicate and the pentachlorophenol being reous solution of thereaction product of hydrated sodium acted in the ratio of from 1 mol ofhydrated sodium orthosilicate with a member selected from the group 60oithosilicate to from 1. to 3 mols of pentachlorophenol. consisting ofbeta naphthol, phenol, a halogen substituted phenol, cresol, a halogensubstituted cresol, an- References Cited in the fil f this patentthrols, and hydroxy substituted phenols, the hydrated sodiumorthosilicate and said member being reacted UNITED STATES PATENTS in theratio of from 1 mol of hydrated sodium ortho- 65 2,224,815 GlycofridesDec. 10, 1940 silicate to from 1 to 3 mols of said member. 2,335,012Johnston Nov. '23, 19.43

2. An insect toxicant composition comprising an aquc-- 2,485,366 DiGiorgio .Oct. 18, 1949

1. AN INSECT TOXICANT COMPOSITION COMPRISING AN AQUEOUS SOLUTION OF THEREACTION PRODUCT OF HYDRATED SODIUM ORTHOSILICATE WITH A MEMBER OFSELECTED FROM THE GROUP CONSISTING OF BETA NAPTHOL, PHENOL, A HALOGENSUBSTITUTED PHENOL, CRESOL, A HALOGEN SUBSTITUTED CRESOL, ANTHROLS, ANDHYDROXY SUBSTITUTED PHENOLS, THE HYDRATED SODIUM ORTHOSILICATE AND SAIDMEMBER BEING REACTED IN THE RATIO OF FROM 1 MOL OF HYDRATED SODIUMORTHOSILICATE TO FROM 1 TO 3 MOLS OF SAID MEMBER.